Closure for containers.



S. S. WILLIIVISON 6a H. D. BOYER.

CLOSURE FOR CONTAINERS. APPLICATION FILED AUG.24. 191i.

` Patented Aug. EL3, 1918.

EETS-SHEET I.

S e S S Ve .m w

Attorney.

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S. S. WILLIAMSON & H. D. BOYER.

CLOSURE FOR CONTAINERS.

APPLICATION FILED Aue.24. Ism.

1,275,816. m9111011 Aug. 13, 1918.

2 SHEETS-SHEET 2.

Vitrtlessesy Attorney.

I nven tors.

ITED STATES PATENT orme.

SAMUEL s. yWILLIAMson AND HARRISON D. BOYER, or PHILADELPHIA, rENNsYn vANIA.

cLosUaE ron. CONTAINERS.

Cnr invention relates to a new and useful improvement in closures for containers and has for its object `to provide a simple and` eective device `of this character which can be securely locked in place` without` any:

other means of fastening except `the shape of the closure `and the ring. 1i i l:

A further object; or" our invention is to so construct the device that it can be readily unlocked and removed `from the container, it being especially adapted for use on glass jars. l l

`With these ends in` View our invention consists of certain details of construction hereinafter set forth and thennspecically designated in .the claims, reference being had to the accompanying drawings in which z-f f N Figure 1, is a vertical section of a jar showing the closure `locked in the mouth thereof. l l l.

Fig. 2, is a similar view showing the closure as placed in the mouth of the jar prior to pressing the tilted edge downward, whereby the locking willbe effected.

Fig. 3, is a side elevation of the closure. Fig. 4, is a similar view taken at right angles to Fig. 3. v Fig. 5, is a bottom plan of the closure. Fig. 6, is aview similar toFig. l` showing our improvement adapted tolock over the mouth o-Ithejars, and- Fig. y7, is a `bottom planof the closure shown in Fig; 6. u

In carrying out our invention as embodied in Figs. l to 5 inclusive, 1 represents a jar having an under cut shoulder 2 which we utilize to lock the closure or top 3 in place as hereafter explained.`

While the closure may be `made of any suitable material it is` wellladapted to be of glass and consists of a disk having opposing lugs or projectionst adapted to pass v beneath the under cnt shoulder 2 of the jar.

The distance between the eXtreme ends of action of the sealing i Specification of Letters Patent. 1351331117311 Aug; 13, 1918. Application filed August 24, 1917. Serial No. 187,924.

these `opposing lugs is greater than the diameter of the opening through which they pass, and to beinserted beneath the shoulder 2 must be tipped atan angle as shown in Fig-2. l l l A sealing ring surrounds the closure or top 3 and must be oi' su'flicient thickness and compressibility to permit the top to be forced` edgewise to the extent oi' permitting the elevated lug to pass through the opening and in turnbe forced beneath the shoulder by the reaction oi` said sealing ring. Cork or rubber are well. adapted for this purpose.

Whilewe have shown the opposing lugs formed upontheends of a bar 6 it is obvious that the lower portion of the top might he1 elliptical in shape, the edge of the major diameter serving as the opposing lugs, or there maybe three or more points of` opposing contact.

A portion or' the top is slabbed away as at 7 to indicate the point at which an iniplementsuch as a knife or spoon` handle is to be applied to tilt one edge of the top up ward in unlocking the same.

From the above description the operation pi' our improvement will obviously be as folows: l

The top being placed in the mouth of the jar `in the position shown in Fig. Zone of l the lugs will be inserted beneath the shoulcurely lock the top in place against any internal pressure which the jar may `be capa# ble ,ofsustaining but when it is desired to remove the top from the jar, it is only necessary to insert an implement at the slabbed portion 7 `and pry thisedge of thetop up-` ward,lwhenthecorrespondinglug 4 by camming upon the shoulder 2 will force the top edgewise, compressingone side of the seal-A ing ring suiiioiently to let this lug pass np- `ward through the opening to the position shown in Fig. 2. The top will then be free for removal.

Among the advantages of this device is the fact that no fastening devices are used Y and thatzboth the jar and'top maybe made the-mouthof thejjar the lugs 9 being adaptedvto pass 'under the 'shoulder l0 formed upon the jar.

In this construction the compressible washer lil -is seated inside of rthe f closure.

Instead of thelu'gs 9the lowerrim of the top v8 may have a 'flange formed vtherewith of elliptical shape as shown in dotted lines in Fig. 7, the opposing points of contact being the innery edges thereof on :the minor axis of'the ellipse.

course it is notour eintention to ilimit ourselves to-theexact sizeor shapeof the jar'or its closure as these may be varied within the scope of thegclaims.l

Having thus fully described'our invention, what we elaimas new and patentable is l. A-closure for a container of'the'class having ashoulder adjacent-itsrmouth, said closure havinglopposing pointsof contact adapted to alternately'passundersaid shoul der and beheld vagainst withdrawal except by first forcing'the closure sidewise, anda sealing ring interposed betweenthe'closure and the mouth ofthe container, said ring being-of material suiiiciently resilient to permit thefopposing contact points to be yalternately forced 'beneath the shoulder and normally hold said opposing points equidistant beneath said shoulder.

"2. A closure for containers consisting of 'a disk having opposing contact points adaptedito'alternately'pass beneath a shoulder onfthe container and beheld in a normal positionby aresilient sealing ring.

A3. A closure for containers consisting of ya Vdisk having rigid opposed contact points adapted-to alternatelyfpass beneath a shoulder upon the container, v4a resilient sealing ring for holding said contact' points in -normal position beneath -said shoulder zand-a slabbed portion for facilitating the insertion of an "implement for forcing `the closure edgewise and lifting one side lthereof upward.

4. In combination, a container undercut below its mouth,a`top havingflugs adapted to be alternately and diametrically inserted in the undercut' and'resilient means toper Vmit said'insertion and then center the top to 'maintain the lugs in said undercut.

5. =In a device ofthe characterk described, a tophaving lugs in combinati'eniwith a receptacle provided with means adjacent Lits mouth to alternately receive said lugs and resilient means disposed between the top and receptacle to -perlnit the'insertion 'of one lug Vafter the other has been positioned and then mouth, a closure provided with opposing lugs adapted to underlie said shoulder and be alternately projected beneath saidshoulder and vresilient means to permitthe projection of onelug beneath the shoulder after the other has beenpositioned and then center the closure to maintain bothlugsbeneath'the shoulder.

Y. Aclosure Zcomprising in combination, a receptacle having-a shoulder adjacent its mouth, a closure provided with'opposing lugs adapted to underlie said shoulder and be alternately and diametrically Vprojected beneath said shoulder and resilient means located 'between the receptacle and closure to permit the projection ofone lug beneath the shoulder after the other lug has been positioned and then center lthe closure to maintain both lugs beneath the shoulder.

S. A closure comprising in combination, a receptaele `rhaving a shoulder below its mouth, a closure provided with opposing lugs, the distance between the kends of said lugs being greater than the diameter of the shoulder and adapted to be'alternately inserted beneath said shoulder and a resilient ring-adapted to be compressed during the insertion of one of the lugs after theother has been Apositioned and :then center the closure to maintain both lugs beneath the shoulder.

9. A closure for containers comprising a top provided with diametrically opposite lugs, a resilient ring on said top and a container undercut below its mouth into which the lugs are alternately projected by a diametric movement of thetop, the'irst movement vbeing accomplished manually and the second vmovement by the action of the resilient ring.

l0. A closure for containers comprising a top provided with lugs, a container undercut below its mouth and a resilient ring, said ring being compressed to permit thefprojection-of one lug into the undercut after the other lug has been positioned and then center 'the top to maintain both-lugs in -the undercut.

In'testimony whereof, we have hereunto aixed Vour signatures.v

SAMUEL s. WILLIAMSON. HARRISON D. Boren depieslof this patentimayebelobtainedrfor .ve cents each, by addressing the Gommissionermt Patents,

n Washington, ID. C3 

